In this Toyota, for example, the purge valve is tested with a vacuum gauge (in the photo). The vacuum pump with the gauge is connected to one side of the valve. When the vacuum is applied, the purge valve should hold the vacuum and not leak. If the vacuum drops (the gauge needle ...
I am driving first car(Toyota corolla LE- year 2001, 42000 miles) of my life and today morning It failed road side inspection. The error code given are 1) P0446 : Evaporative Emission control system Vent control circuit 2) P0441 : Evaporative emission control system incorrect purge flow 3...
I've been driving around with the check engine light on, but if another code should happen other than the evap system, I'll never know about it. Nor do I have $400 to go to the local Toyota dealer to have them diag the problem, even though I can already give them the code.. the...